Answer this question truthfully
### Question: What are the symptoms of Human respiratory syncytial virus?
### Response: Symptoms vary and differ with age. They usually appear 4 - 6 days after coming in contact with the virus. Older children usually have only mild, cold-like symptoms, such as cough, stuffy nose, or low-grade fever. Infants under age 1 may have more severe symptoms and often have the most trouble breathing. In general, RSV symptoms include:
Bluish skin color due to a lack of oxygen (cyanosis) Breathing difficulty or labored breathing Cough Croupy cough (often described as a "seal bark" cough) Fever Nasal flaring Rapid breathing (tachypnea) Shortness of breath Stuffy nose Wheezing